CN218874696U - Inner hole key groove milling shockproof mechanism - Google Patents
Inner hole key groove milling shockproof mechanism Download PDFInfo
- Publication number
- CN218874696U CN218874696U CN202223174971.7U CN202223174971U CN218874696U CN 218874696 U CN218874696 U CN 218874696U CN 202223174971 U CN202223174971 U CN 202223174971U CN 218874696 U CN218874696 U CN 218874696U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- ring
- fixed
- piston rod
- telescopic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model relates to an inner hole key groove milling shockproof mechanism, belonging to the technical field of inner hole milling; the spring chuck lengthening end is arranged at the lengthening angle head and comprises a fixed seat and three support legs; the outer side surface of the fixed seat is uniformly provided with three telescopic grooves, supporting legs are arranged in the telescopic grooves, each supporting leg comprises a fixed ring, a sliding ring, a piston rod and a roller, the fixed ring is fixed at an opening of the telescopic groove, the piston rod is inserted into the fixed ring, one roller is arranged at one end of the piston rod on the outer side of the fixed ring, one end of the piston rod on the inner side of the fixed ring is in threaded connection with the sliding ring, the sliding ring is in contact with the inner side surface of the telescopic groove, and the sliding ring divides the interior of the telescopic groove into an outer cavity and an inner cavity which are separated; the fixed seat is provided with a positive cavity air inlet and three negative cavity air inlets, the positive cavity air inlet is communicated with the inner cavities of the three telescopic grooves, and the negative cavity air inlets are respectively communicated with the corresponding telescopic groove outer cavities; reduce the vibrations of extension angle head at the during operation, improve the machining precision of hole keyway.
Description
Technical Field
The utility model belongs to the technical field of the hole mills, concretely relates to hole keyway mills shockproof mechanism.
Background
Keyways are usually designed in inner holes of cylinder barrel parts, part of the keyways are through grooves, and part of the keyways are blind grooves. The machining of the through groove can be completed by linear cutting, car inserting, pulling and boring and angle head milling, the machining precision of the linear cutting, the car inserting and the pulling and boring is low, the efficiency is low, and the machining cost of the linear cutting is high; the semi-blind key groove can not be finished by linear cutting, car inserting and boring, and the angle head milling is only suitable for key grooves with large cylinder diameter and short length. If the length-diameter ratio of the inner hole is larger, the lengthening angle head is needed to be used, the length-diameter ratio of the lengthening rod of the lengthening angle head is large, the lengthening rod is of a cantilever beam structure, even if the lengthening rod of the lengthening angle head adopts special alloy steel, the lengthening rod has high rigidity through an advanced heat treatment process, and deflection is inevitably generated. In the milling process, the cutter is influenced by cutting resistance and extension bar deflection, the cutter vibrates in the milling process, vibration lines are generated on the machining surface, the cutter and a machined workpiece are easy to damage by the impact force of vibration in the rotary cutting process of the milling cutter, the cost and the risk are high, and the machining precision requirement is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides an inner hole key groove milling shockproof mechanism; the problem of present extension angle head make keyway machining precision relatively poor because of vibrations when processing hole keyway is solved.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
An inner hole key groove milling shockproof mechanism is arranged at a spring chuck lengthening end of a lengthening angle head and comprises a fixed seat and three support legs; the outer side surface of the fixed seat is uniformly provided with three telescopic grooves along the circumference, each telescopic groove is internally provided with a supporting leg respectively, each supporting leg comprises a fixed ring, a sliding ring, a piston rod and a roller, the fixed ring is fixed at the opening of the telescopic groove, the piston rod is inserted into the fixed ring, one end of the piston rod outside the fixed ring is provided with a roller, one end of the piston rod inside the fixed ring is in threaded connection with the sliding ring, the sliding ring is in contact with the inner side surface of the telescopic groove, and the sliding ring divides the inside of the telescopic groove into an outer cavity and an inner cavity which are separated; the fixing seat is provided with a positive cavity air inlet and three negative cavity air inlets, the positive cavity air inlet is communicated with the inner cavities of the three telescopic grooves, and the negative cavity air inlets are respectively communicated with the corresponding telescopic groove outer cavities.
Furthermore, the positive cavity air inlet is arranged at the axis of the fixed seat and is not communicated with the bottom surface of the fixed seat.
Furthermore, the axis of the telescopic groove is arranged along the radial direction of the fixed seat, and the telescopic groove is not communicated with the positive cavity air inlet at the axis of the fixed seat.
Furthermore, a step is arranged at the orifice of the telescopic groove, and the fixed ring is arranged at the step; the retainer plate is the echelonment structure, including the little diameter section in the big diameter section of flexible inslot side and the flexible groove outside, the terminal surface of big diameter section is located the step department of flexible inslot portion, and little diameter section is located one side that the step was kept away from to big diameter section.
Further, a sealing ring is arranged between the outer side surface of the large-diameter section and the inner wall of the telescopic groove; a retaining ring is sleeved on the outer side face of the small-diameter section, the retaining ring is in contact with one side end face, far away from the step, of the large-diameter section, and the outer edge of the retaining ring is clamped on the inner wall of the telescopic groove, so that the fixing ring is fixed inside the telescopic groove.
Furthermore, an inserting hole with two through ends is arranged at the axis of the fixing ring, the piston rod is inserted in the inserting hole, and the piston rod is connected with the inserting hole through a sliding bearing.
Furthermore, a threaded hole is formed in the end face of one end of the outer side of the piston rod, a fixed rod is fixedly screwed in the threaded hole, and the axis of the fixed rod is arranged along the radial direction of the fixed seat; the inboard one end and the piston rod looks spiro union of dead lever, outside one end rotate be connected with the gyro wheel, the axis of gyro wheel is parallel with the axis of fixing base.
Furthermore, the outer side surface of the sliding ring is contacted with the inner side surface of the telescopic groove through a sealing ring.
Furthermore, an air inlet is formed in the center of the bottom surface of the inner cavity of the telescopic groove, and the telescopic groove is communicated with the positive cavity air inlet in the axis of the fixed seat through the air inlet.
Furthermore, air inlet pipes are arranged at the air inlet of the positive cavity and the air inlet of the reverse cavity on the upper end surface of the fixing seat, and overflow valves are arranged on the air inlet pipes at the air inlet of the positive cavity.
The utility model discloses produced beneficial effect for prior art does:
the utility model provides a hole keyway mills shockproof mechanism, when extension angle head drives milling cutter when cylinder hole processing keyway, the inside telescopic landing leg of shockproof mechanism drives the gyro wheel and contacts with the cylinder hole all the time to reduce extension angle head at the vibrations of during operation, reduce the vibration line that the machined surface produced, and then improve the machining precision of the great hole keyway of cylinder inner wall draw ratio.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings:
fig. 1 is a sectional view of the present invention in a top view;
FIG. 2 is a schematic view of FIG. 1 in operation;
FIG. 3 isbase:Sub>A sectional view A-A of FIG. 1;
wherein, 1 is a cylinder barrel, 2 is a fixed seat, 3 is a supporting leg, 4 is a telescopic groove, 5 is a positive cavity air inlet, 6 is a milling cutter, 7 is a key groove, 8 is the center of circle of the cylinder barrel, 9 is the center of circle of a shockproof mechanism, 10 is a fixed ring, 11 is a check ring, 12 is a piston rod, 13 is a fixed rod, 14 is a roller, 15 is a sliding ring, and 16 is a reverse cavity air inlet.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1-3, the utility model provides a hole keyway mills shockproof mechanism sets up in the spring chuck extension end department that adds the angle head, including a fixing base 2 and three landing leg 3, landing leg 3 is telescopic cylinder structure, and gyro wheel 14 on each landing leg 3 contacts with 1 inner wall of the cylinder of processing to control extension angle head is the vibrations at the during operation.
The fixing seat 2 is of a cylindrical structure, a positive cavity air inlet 5 is formed in the axis of the upper end face of the fixing seat, and the positive cavity air inlet 5 is not communicated with the bottom face of the fixing seat 2.
Evenly be provided with three cylindric flexible groove 4 along the periphery on the lateral surface of fixing base 2, the axis of flexible groove 4 sets up along the radial of fixing base 2 to flexible groove 4 is linked together with the lateral surface of fixing base 2, and is not communicated with positive chamber air inlet 5 of fixing base 2 axis department.
Each telescopic groove 4 is internally provided with a supporting leg 3, and the supporting leg 3 comprises a fixed ring 10, a piston rod 12, a roller 14 and a sliding ring 15.
A step is arranged at the orifice of the telescopic groove 4, and a fixed ring 10 is arranged at the step. Retainer plate 10 is the echelonment structure, including the big diameter section of the 4 inboard big diameter sections in flexible groove and the little diameter section in the 4 outsides in flexible groove, and the terminal surface of big diameter section is located the inside step department in flexible groove 4, and little diameter section is located one side that the step was kept away from to big diameter section. A sealing ring is arranged between the outer side surface of the large-diameter section and the inner wall of the telescopic groove 4. A retaining ring 11 has been cup jointed at the lateral surface of little diameter section, and retaining ring 11 contacts with a side end face that the step was kept away from to big diameter section, and retaining ring 11's outward flange joint is on the inner wall of flexible groove 4 to be fixed in flexible groove 4 inside with retainer plate 10, realized that the axial of retainer plate 10 is spacing.
An inserting hole with two through ends is arranged at the axis of the fixing ring 10, a piston rod 12 is inserted in the inserting hole, and the piston rod 12 is connected with the inserting hole through a sliding bearing. The piston rod 12 extends into the telescopic groove 4 from the outer side of the telescopic groove 4, a threaded hole is formed in the end face of one end of the outer side of the piston rod 12, a fixing rod 13 is fixedly screwed in the threaded hole, and the axis of the fixing rod 13 is arranged along the radial direction of the fixing seat 2. One end of the inner side of the fixed rod 13 is in threaded connection with the piston rod 12, one end of the outer side of the fixed rod is rotatably connected with a roller 14, and the roller 14 is of a spherical structure.
One end of the inner side of the piston rod 12 is screwed on the axis of the sliding ring 15, the sliding ring 15 and the telescopic groove 4 are coaxially arranged, and the outer side surface of the sliding ring 15 is contacted with the inner side surface of the telescopic groove 4 through a sealing ring. The sliding ring 15 is synchronously extended and retracted in the extension and retraction groove 4 along with the piston rod 12. The sliding ring 15 divides the telescopic slot 4 in the fixed ring 10 into an outer cavity and an inner cavity, and the outer cavity and the inner cavity are mutually isolated by the sliding ring 15.
The telescopic groove 4 is provided with an air inlet at the center of the bottom surface of the inner cavity, and the telescopic groove 4 is communicated with a positive cavity air inlet 5 at the axis of the fixed seat 2 through the air inlet. The positive cavity air inlet 5 on the fixed seat 2 is respectively communicated with the inner cavities inside the three telescopic slots 4 through three air inlets.
Three anti-cavity air inlets 16 are respectively arranged on the upper side end face of the fixed seat 2, and one ends of the inner sides of the three anti-cavity air inlets 16 are communicated with the outer cavity inside the telescopic groove 4.
And air inlet pipes are arranged at the positive cavity air inlet 5 and the negative cavity air inlet 16 of the upper end surface of the fixed seat 2, and compressed air is input into the positive cavity air inlet 5 and the negative cavity air inlet 16 through the air inlet pipes. An overflow valve is arranged on an air inlet pipe at the positive cavity air inlet 5, and the contact pressure of the roller 14 and the inner hole of the cylinder barrel 1 is controlled through the overflow valve.
The utility model discloses a theory of operation does:
when the lengthened angle head drives the milling cutter 6 to mill the key groove 7 in the inner hole of the cylinder barrel 1, compressed air is input to the positive cavity air inlet 5 through the air inlet pipe, the compressed air enters the inner cavities in the three telescopic grooves 4 respectively through the air inlet, the compressed air in the inner cavities pushes the sliding ring 15 and the piston rod 12 to slide outwards until the roller 14 on the fixing rod 13 is contacted with the inner hole of the cylinder barrel 1. The rollers 14 at the ends of the three fixing rods 13 are in contact with the inner hole of the cylinder barrel 1, so that the support is realized in the milling process of the angle head. Meanwhile, the roller 14 slides in the inner hole of the cylinder barrel 1 along with the milling cutter 6, so that the vibration of the lengthening angle head is effectively controlled.
As shown in figure 2, when the milling cutter 6 moves when processing the key slot 7, the circle center 8 of the cylinder barrel is not overlapped with the circle center 9 of the shockproof mechanism, the extension amplitude of each supporting leg 3 is different, but the roller 14 on each supporting leg 3 is still contacted with the inner hole of the cylinder barrel 1 to control the shock of the lengthening angle head.
After milling, compressed air is input into the reverse cavity air inlet 16 through the air inlet pipe, the compressed air enters the inside of the outer cavity of the three telescopic grooves 4, the compressed air in the outer cavity pushes the sliding ring 15 and the piston rod 12 to slide towards the inner side, and the roller 14 on the fixing rod 13 gradually breaks away from the inner hole of the cylinder barrel 1 and gradually keeps away from the inner hole, so that the lengthened angle head with the shockproof mechanism can be taken out, and the processing of the key groove 7 on the inner hole of the cylinder barrel 1 is completed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a hole keyway mills shockproof mechanism which characterized in that: the spring chuck lengthening end arranged at the lengthening angle head comprises a fixed seat (2) and three supporting legs (3); the outer side face of the fixed seat (2) is uniformly provided with three telescopic grooves (4) along the periphery, each telescopic groove (4) is internally provided with one supporting leg (3), each supporting leg (3) comprises a fixed ring (10), a sliding ring (15), a piston rod (12) and a roller (14), the fixed ring (10) is fixed at an opening of each telescopic groove (4), the piston rod (12) is inserted into the fixed ring (10), one roller (14) is arranged at one end, on the outer side of the fixed ring (10), of the piston rod (12), one end, on the inner side of the fixed ring (10), of the piston rod (12) is in threaded connection with the sliding ring (15), the sliding ring (15) is in contact with the inner side face of each telescopic groove (4), and the inside of each telescopic groove (4) is divided into an outer cavity and an inner cavity by the sliding ring (15); a positive cavity air inlet (5) and three negative cavity air inlets (16) are arranged on the fixed seat (2), the positive cavity air inlet (5) is communicated with the inner cavities of the three telescopic grooves (4), and the negative cavity air inlets (16) are respectively communicated with the outer cavities of the corresponding telescopic grooves (4).
2. The internal bore keyway milling anti-vibration mechanism of claim 1, wherein: the positive cavity air inlet (5) is arranged at the axis of the fixed seat (2) and is not communicated with the bottom surface of the fixed seat (2).
3. The internal bore keyway milling anti-vibration mechanism of claim 2, wherein: the axis of the telescopic groove (4) is arranged along the radial direction of the fixed seat (2), and the telescopic groove (4) is not communicated with the positive cavity air inlet (5) at the axis of the fixed seat (2).
4. The internal bore keyway milling anti-vibration mechanism of claim 1, wherein: a step is arranged at the orifice of the telescopic groove (4), and the step is provided with the fixing ring (10); retainer plate (10) are the echelonment structure, including the little diameter section in the big diameter section of flexible groove (4) inboard and flexible groove (4) outside, and the terminal surface of big diameter section is located flexible groove (4) inside step department, and little diameter section is located one side that the step was kept away from to big diameter section.
5. The internal bore keyway milling anti-vibration mechanism of claim 4, wherein: a sealing ring is arranged between the outer side surface of the large-diameter section and the inner wall of the telescopic groove (4); one retaining ring (11) has been cup jointed to the lateral surface at little diameter section, and retaining ring (11) and the one side terminal surface of the step of keeping away from in big diameter section contact, and the outward flange joint of retaining ring (11) is on the inner wall of flexible groove (4) to be fixed in flexible groove (4) inside retainer plate (10).
6. The internal bore keyway milling anti-vibration mechanism of claim 1, wherein: an inserting hole with two through ends is formed in the axis of the fixing ring (10), the piston rod (12) is inserted in the inserting hole, and the piston rod (12) is connected with the inserting hole through a sliding bearing.
7. The internal bore keyway milling anti-vibration mechanism of claim 6, wherein: a threaded hole is formed in the end face of one end of the outer side of the piston rod (12), a fixing rod (13) is fixedly screwed in the threaded hole, and the axis of the fixing rod (13) is arranged along the radial direction of the fixing seat (2); one end of the inner side of the fixed rod (13) is in threaded connection with the piston rod (12), one end of the outer side of the fixed rod is rotatably connected with the roller (14), and the axis of the roller (14) is parallel to the axis of the fixed seat (2).
8. The internal bore keyway milling anti-vibration mechanism of claim 1, wherein: the outer side surface of the sliding ring (15) is contacted with the inner side surface of the telescopic groove (4) through a sealing ring.
9. The internal bore keyway milling anti-vibration mechanism of claim 1, wherein: the telescopic groove (4) is provided with an air inlet at the center of the bottom surface of the inner cavity, and the telescopic groove (4) is communicated with the positive cavity air inlet (5) at the axis of the fixed seat (2) through the air inlet.
10. The internal bore keyway milling anti-vibration mechanism of claim 1, wherein: air inlet pipes are arranged at the positive cavity air inlet (5) and the negative cavity air inlet (16) of the upper end surface of the fixed seat (2), and overflow valves are arranged on the air inlet pipes at the positive cavity air inlet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223174971.7U CN218874696U (en) | 2022-11-29 | 2022-11-29 | Inner hole key groove milling shockproof mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223174971.7U CN218874696U (en) | 2022-11-29 | 2022-11-29 | Inner hole key groove milling shockproof mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218874696U true CN218874696U (en) | 2023-04-18 |
Family
ID=85951744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223174971.7U Active CN218874696U (en) | 2022-11-29 | 2022-11-29 | Inner hole key groove milling shockproof mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218874696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444295A (en) * | 2023-11-22 | 2024-01-26 | 扎赉诺尔煤业有限责任公司 | Workpiece inner hole keyway inserting device |
-
2022
- 2022-11-29 CN CN202223174971.7U patent/CN218874696U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444295A (en) * | 2023-11-22 | 2024-01-26 | 扎赉诺尔煤业有限责任公司 | Workpiece inner hole keyway inserting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104723045B (en) | A kind of processing technique of the big aspect ratio axle of inner bore of step | |
| CN218874696U (en) | Inner hole key groove milling shockproof mechanism | |
| CN110640185A (en) | Machining tool and machining method for deep hole in center of connecting rod of marine low-speed diesel engine | |
| CN215201451U (en) | Gasbag formula thin wall part grinding fixture | |
| CN103894641A (en) | Outer-ejection-type inner expansion clamping sleeve | |
| CN203738450U (en) | Cylinder barrel turning fixture | |
| CN111745314B (en) | A rear chuck for laser cutting machine | |
| CN204094495U (en) | A kind of sleeping carriage cylinder class work pieces process supplemental support frock | |
| CN112774578A (en) | Forging type cubic hydraulic press | |
| CN210817498U (en) | A three-layer stepped large-diameter boring tool for machining the front casing of the transmission case | |
| CN215510003U (en) | Self-centering tool for machining center hole in end face of shaft head | |
| CN108436124A (en) | A kind of symmetrical bikini expanding arbor fixture | |
| CN120587512A (en) | Processing system and method for processing rotating body through-hole thin-wall shell | |
| CN221290842U (en) | Automatic hydraulic self-centering floating clamping structure | |
| CN210587233U (en) | Hydraulic expansion mandrel with external thread dismounting structure | |
| CN112809415B (en) | A horizontal double-sided combined milling machine fixture with four positioning planes for tractor gearbox | |
| CN112325753B (en) | Safety detection device for marine diesel engine cylinder cover | |
| CN221952333U (en) | Thin-wall workpiece finish turning floating support tool | |
| CN218030913U (en) | Hydraulic self-centering floating buffer sleeve for hydraulic oil cylinder | |
| CN215546769U (en) | Device for processing center hole of end face of automobile shaft head | |
| CN220260780U (en) | Hydraulic cylinder barrel internal stay anchor clamps | |
| CN201295772Y (en) | Main axle set for high precision special purpose machine | |
| CN222403486U (en) | Grooving processing device | |
| CN222608830U (en) | A positioning mechanism for machining outer circles of deep hole parts | |
| CN219542355U (en) | Positioning tool for turning end face and milling side groove of automobile gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |